error on calling a class name ?

i got this error on calling the class name
which was working a few months ago!

so probably an du to an API changes

Traceback (most recent call last):", line 869, in execute
TypeError: error with argument 1, “type” - , Function.ty
pe expected a set, not a str

after running it another time i get this line as error

def execute(self, context):‘INFO’, “Removed Objects/Lamps added with the wizard”)

the class header is this

class removeOperator(bpy.types.Operator):

bl_idname = ‘.remove_op’
bl_label = ‘Remove Objects/Lamps’

so what’s wrong with this and how to correct it ?

thanks for any help

Wants a set .{'INFO'}, "Removed Objects/Lamps added with the wizard")

will test later
got other problems to solve first !